At this point I'm going to assume that it will take an IPL in order to fix this. Maybe only cycling TCPIP, But I don't do that, so IPL is going to have to be the fix.
On Thu, Jun 5, 2025 at 7:09 AM Mark Pace <[email protected]> wrote: > Thank you for that command. It shows exactly what I have previously posted. > > F RESOLVER,DISPLAY > EZZ9298I RESOLVERSETUP - SYS3.TCPIP.TCPPARMS(RESSETUP) > EZZ9298I DEFAULTTCPIPDATA - SYS3.TCPIP.TCPPARMS(TCPDATA) > EZZ9298I GLOBALTCPIPDATA - None > EZZ9298I DEFAULTIPNODES - None > EZZ9298I GLOBALIPNODES - None > EZZ9304I NOCOMMONSEARCH > EZZ9304I CACHE > EZZ9298I CACHESIZE - 200M > EZZ9298I MAXTTL - 2147483647 > EZZ9298I MAXNEGTTL - 2147483647 > EZZ9304I NOCACHEREORDER > EZZ9298I UNRESPONSIVETHRESHOLD - 25 > EZZ9293I DISPLAY COMMAND PROCESSED > > > On Thu, Jun 5, 2025 at 6:32 AM Mark Regan < > [email protected]> wrote: > >> If you haven't already done so, check your current RESOLVER configuration >> by entering the following MVS command string, as shown below: >> >> F RESOLVER,,DISPLAY >> >> Display >> >> Displays the current resolver setup statement values, including the name >> of >> the most recently used >> resolver setup file. If the autonomic quiescing of unresponsive name >> server >> function is active, the >> resolver also displays the status of the name servers specified on >> NSINTERADDR statements in the >> global TCPIP.DATA file. >> >> The above is from "z/OS Communications Server: z/OS 3.1 Communications >> Server: IP System Administrator's Commands". >> >> Examples of what you may get back are located in the same manual. >> >> Regards, >> >> Mark Regan, K8MTR General, EN80 >> CTO1 USNR-Retired (1969-1991), >> Nationwide Insurance, Retired (1986-2017), >> z/OS Network Infrastructure Engineering Consultant >> Checks & Balances, Contractor w/Nationwide Ins. (2021-2023) >> Epsilon Inc., Contractor (2023-Present), >> z/OS Network Systems Programmer >> >> >> >> On Wed, Jun 4, 2025 at 4:45 PM Phil Smith III <[email protected]> wrote: >> >> > Well that's interesting. Here's what I see (but I'm not having a >> problem); >> > note several "DNS address" entries: >> > >> > netstat -qSUM DNS >> > MVS TCP/IP NETSTAT CS 3.1 TCPIP Name: TCPIP 15:48:25 >> > Storage Usage: >> > Maximum: 200M >> > Current: 25K MaxUsed: 35K >> > Cache Usage: >> > Total number of entries: 0 >> > Non-NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > Queries: 497 Hits: 346 >> > SuccessRatio: 70% >> > >> > DNS address: 9.0.0.1 >> > Total number of entries: 0 >> > Non-NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > References: 151 Hits: 0 >> > >> > DNS address: 208.67.222.222 >> > Total number of entries: 0 >> > Non-NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > References: 151 Hits: 0 >> > >> > DNS address: 8.8.8.8 >> > Total number of entries: 0 >> > Non-NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > References: 497 Hits: 346 >> > >> > -----Original Message----- >> > From: IBM Mainframe Discussion List <[email protected]> On >> Behalf >> > Of Mark Pace >> > Sent: Wednesday, June 4, 2025 4:40 PM >> > To: [email protected] >> > Subject: Re: Resolver Issue >> > >> > Not seeing anything useful there. >> > >> > > netstat -qSUM DNS >> > MVS TCP/IP NETSTAT CS V2R5 TCPIP Name: TCPIP 20:38:18 >> > Storage Usage: >> > Maximum: 200M >> > Current: 8K MaxUsed: 9K >> > Cache Usage: >> > Total number of entries: 0 >> > Non-NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > NX entries: 0 >> > A: 0 AAAA: 0 PTR: 0 >> > Queries: 0 Hits: 0 >> > SuccessRatio: 0% >> > > >> > >> > On Wed, Jun 4, 2025 at 3:42 PM Phil Smith III < >> > [email protected]> wrote: >> > >> > > Looks like: >> > > netstat -qSUM DNS >> > > might also have been useful? Too late now, but maybe helpful for the >> > > next victim? I'm not 100% sure--went trolling to see what might be >> > > used since no IPCONFIG/IFCONFIG and found that. >> > > >> > > -----Original Message----- >> > > From: IBM Mainframe Discussion List <[email protected]> On >> > > Behalf Of Mark Pace >> > > Sent: Wednesday, June 4, 2025 3:32 PM >> > > To: [email protected] >> > > Subject: Re: Resolver Issue >> > > >> > > About 2 mins later. >> > > >> > > EZZ9310I NAME SERVER 10.6.0.10 001 >> > > TOTAL NUMBER OF QUERIES SENT 21 >> > > TOTAL NUMBER OF FAILURES 21 >> > > PERCENTAGE 100% >> > > >> > > On Wed, Jun 4, 2025 at 3:21 PM Mark Pace <[email protected]> >> wrote: >> > > >> > > > I'll give it a try and keep an eye out. >> > > > >> > > > F RESOLVER,FLUSH,ALL >> > > > EZZ9305I 0 CACHE ENTRIES DELETED >> > > > EZZ9293I FLUSH COMMAND PROCESSED >> > > > >> > > > On Wed, Jun 4, 2025 at 3:09 PM Steely.Mark < >> > > > [email protected]> wrote: >> > > > >> > > >> Try this: F RESOLVER,FLUSH,ALL >> > > >> >> > > >> Thanks >> > > >> >> > > >> -----Original Message----- >> > > >> From: IBM Mainframe Discussion List <[email protected]> On >> > > >> Behalf Of Mark Pace >> > > >> Sent: Wednesday, June 04, 2025 2:06 PM >> > > >> To: [email protected] >> > > >> Subject: Re: Resolver Issue >> > > >> >> > > >> ! >> > > >> >> > > >> CAUTION! EXTERNAL SENDER! STOP, ASSESS, AND VERIFY Do you know this >> > > >> person? Were you expecting this email? If not, report it using the >> > > >> Report Phishing Button! >> > > >> >> > > >> IPCONFIG isn't a command on z/OS, it's a configuration statement. >> > > >> >> > > >> The only thing I can be sure of is that it is the RESOLVER sending >> > > >> the error messages. >> > > >> >> > > >> *STC05615* 00000090 $HASP100 RESOLVER ON STCINRDR >> > > >> *STC05615* 00000090 EZZ9310I NAME SERVER 10.6.0.10 982 >> > > >> 982 00000090 TOTAL NUMBER OF QUERIES SENT 21 >> > > >> 982 00000090 TOTAL NUMBER OF FAILURES 21 >> > > >> 982 00000090 PERCENTAGE 100% >> > > >> >> > > >> >> > > >> *SYS1.PROCLIB(RESOLVER)* >> > > >> //RESOLVER PROC PARMS='CTRACE(CTIRES00)' >> > > >> //EZBREINI EXEC PGM=EZBREINI,REGION=0M,TIME=1440,PARM=&PARMS >> > > >> //SETUP DD >> DSN=SYS3.TCPIP.TCPPARMS(RESSETUP),DISP=SHR,FREE=CLOSE >> > > >> >> > > >> *SYS3.TCPIP.TCPPARMS(RESSETUP)* >> > > >> DEFAULTTCPIPDATA('SYS3.TCPIP.TCPPARMS(TCPDATA)') >> > > >> NOCOMMONSEARCH >> > > >> CACHE >> > > >> CACHESIZE(200M) >> > > >> MAXTTL(2147483647) >> > > >> UNRESPONSIVETHRESHOLD(25) >> > > >> >> > > >> *SYS3.TCPIP.TCPPARMS(TCPDATA)* >> > > >> LOOKUP LOCAL DNS >> > > >> NAMESERVER 8.8.8.8 8.8.4.4 >> > > >> NSPORTADDR 53 >> > > >> RESOLVEVIA UDP >> > > >> RESOLVERTIMEOUT 30 >> > > >> RESOLVERUDPRETRIES 1 >> > > >> >> > > >> On Wed, Jun 4, 2025 at 2:24 PM Phil Smith III <[email protected]> >> > wrote: >> > > >> >> > > >> > I don't know but I'd try ipconfig and see what it says? Easter >> > > >> > Egging for sure... >> > > >> > >> > > >> > -----Original Message----- >> > > >> > From: IBM Mainframe Discussion List <[email protected]> >> On >> > > >> > Behalf Of Mark Pace >> > > >> > Sent: Wednesday, June 4, 2025 1:55 PM >> > > >> > To: [email protected] >> > > >> > Subject: Resolver Issue >> > > >> > >> > > >> > I used to have a linux under VM system that was a DNS server. >> > > >> > My z/OS systems used this DNS server. Recently I decided to >> > > >> > retire that DNS server. >> > > >> > >> > > >> > I updated the TCPIP.DATA file, removed the 10.6.0.10 address and >> > > >> > added >> > > >> > 8.8.8.8 and 8.8.4.4. >> > > >> > SYS3.TCPIP.TCPPARMS(TCPDATA) >> > > >> > NAMESERVER 8.8.8.8 8.8.4.4 >> > > >> > >> > > >> > Stopped the resolver and restarted it. >> > > >> > And it works >> > > >> > >> > > >> > EZB3170I Server: dns.google >> > > >> > EZB3172I Address: 8.8.8.8 >> > > >> > >> > > >> > EZB3110I Non-authoritative answer: >> > > >> > EZB3170I Name: eccgw.southdata.ibm.com >> > > >> > EZB3172I Address: 170.225.122.67 EZB3175I Aliases: >> > > >> > eccgw01.boulder.ibm.com >> > > >> > >> > > >> > However - I am still receiving this error message. >> > > >> > >> > > >> > EZZ9308E UNRESPONSIVE NAME SERVER DETECTED AT IP ADDRESS >> > > >> > 10.6.0.10 EZZ9310I NAME SERVER 10.6.0.10 940 >> > > >> > TOTAL NUMBER OF QUERIES SENT 18 >> TOTAL >> > > >> NUMBER >> > > >> > OF FAILURES 18 PERCENTAGE >> > > >> > 100% >> > > >> > >> > > >> > Why would I still receive this error? >> > > >> > >> > > >> > -- >> > > >> > The postings on this site are my own and don’t necessarily >> > > >> > represent Mainline’s positions or opinions >> > > >> > >> > > >> > Mark D Pace >> > > >> > Senior Systems Engineer >> > > >> > Mainline Information Systems >> > > >> > >> > > >> > ----------------------------------------------------------------- >> > > >> > -- >> > > >> > --- For IBM-MAIN subscribe / signoff / archive access >> > > >> > instructions, send email to [email protected] with the >> > > >> > message: INFO IBM-MAIN >> > > >> > >> > > >> > ----------------------------------------------------------------- >> > > >> > -- >> > > >> > --- For IBM-MAIN subscribe / signoff / archive access >> > > >> > instructions, send email to [email protected] with the >> > > >> > message: INFO IBM-MAIN >> > > >> > >> > > >> >> > > >> >> > > >> -- >> > > >> The postings on this site are my own and don’t necessarily >> > > >> represent Mainline’s positions or opinions >> > > >> >> > > >> Mark D Pace >> > > >> Senior Systems Engineer >> > > >> Mainline Information Systems >> > > >> >> > > >> ------------------------------------------------------------------- >> > > >> -- >> > > >> - For IBM-MAIN subscribe / signoff / archive access instructions, >> > > >> send email to [email protected] with the message: INFO >> > > >> IBM-MAIN >> > > >> >> > > >> ------------------------------------------------------------------- >> > > >> -- >> > > >> - For IBM-MAIN subscribe / signoff / archive access instructions, >> > > >> send email to [email protected] with the message: INFO >> > > >> IBM-MAIN >> > > >> >> > > > >> > > > >> > > > -- >> > > > The postings on this site are my own and don’t necessarily represent >> > > > Mainline’s positions or opinions >> > > > >> > > > Mark D Pace >> > > > Senior Systems Engineer >> > > > Mainline Information Systems >> > > > >> > > > >> > > > >> > > > >> > > >> > > -- >> > > The postings on this site are my own and don’t necessarily represent >> > > Mainline’s positions or opinions >> > > >> > > Mark D Pace >> > > Senior Systems Engineer >> > > Mainline Information Systems >> > > >> > > ---------------------------------------------------------------------- >> > > For IBM-MAIN subscribe / signoff / archive access instructions, send >> > > email to [email protected] with the message: INFO IBM-MAIN >> > > >> > > ---------------------------------------------------------------------- >> > > For IBM-MAIN subscribe / signoff / archive access instructions, send >> > > email to [email protected] with the message: INFO IBM-MAIN >> > > >> > >> > >> > -- >> > The postings on this site are my own and don’t necessarily represent >> > Mainline’s positions or opinions >> > >> > Mark D Pace >> > Senior Systems Engineer >> > Mainline Information Systems >> > >> > ---------------------------------------------------------------------- >> > For IBM-MAIN subscribe / signoff / archive access instructions, send >> email >> > to [email protected] with the message: INFO IBM-MAIN >> > >> > ---------------------------------------------------------------------- >> > For IBM-MAIN subscribe / signoff / archive access instructions, >> > send email to [email protected] with the message: INFO IBM-MAIN >> > >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to [email protected] with the message: INFO IBM-MAIN >> > > > -- > The postings on this site are my own and don’t necessarily represent > Mainline’s positions or opinions > > Mark D Pace > Senior Systems Engineer > Mainline Information Systems > > > > -- The postings on this site are my own and don’t necessarily represent Mainline’s positions or opinions Mark D Pace Senior Systems Engineer Mainline Information Systems ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
